Publications by authors named "Sungmoon Jeong"

Background: Although the prognostic nutritional index (PNI) may predict surgical outcomes in certain cancers, the impact of PNI on surgical prognosis in patients undergoing pylorus-preserving pancreaticoduodenectomy (PPPD) is unclear. This study aimed to investigate the impact of preoperative PNI on mortality rate and cancer recurrence rate in patients who underwent PPPD.

Methods: A total of 718 patients who were diagnosed with periampullary or pancreatic cancer and underwent PPPD between January 2012 and December 2016 were analyzed.

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Background: Insufficient participant enrollment is a major factor responsible for clinical trial failure.

Objective: We formulated a machine learning (ML)-based framework using clinical laboratory parameters to identify participants eligible for enrollment in a bioequivalence study.

Methods: We acquired records of 11,592 patients with gastric cancer from the electronic medical records of Kyungpook National University Hospital in Korea.

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Background: Although preoperative carbohydrate loading (PCL) is generally regarded as safe, the significance of assessing gastric status by gastric ultrasound after PCL application has not been adequately explored in real-world clinical settings. Therefore, this study evaluated gastric status after PCL using gastric ultrasound and its potential role in enhancing patient safety within a large surgical cohort under Enhanced Recovery After Surgery (ERAS) protocols.

Methods: We retrospectively analyzed patients who received PCL and underwent hepatobiliary surgery within ERAS protocol between November 2018 to December 2023.

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Background: Influenza A virus (IAV) is a major global health threat, causing seasonal epidemics and occasional pandemics. Particularly, Influenza A viruses from avian species pose significant zoonotic threats, with PB2 adaptation serving as a critical first step in cross-species transmission. A comprehensive risk assessment framework based on PB2 sequences is necessary, which should encompass detailed analyses of specific residues and mutations while maintaining sufficient generality for application to non-PB2 segments.

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Background: Intracranial aneurysm rupture is associated with high mortality and disability rates. Early detection is crucial, but increasing diagnostic workloads place significant strain on radiologists. We evaluated the efficacy of a deep learning algorithm in detecting unruptured intracranial aneurysms (UIAs) using time-of-flight (TOF) magnetic resonance angiography (MRA).

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A simple Python algorithm was used to estimate the four major root traits: total root length (TRL), surface area (SA), average diameter (AD), and root volume (RV) of legumes (adzuki bean, mung bean, cowpea, and soybean) based on two-dimensional images. Four different thresholding methods; Otsu, Gaussian adaptive, mean adaptive and triangle threshold were used to know the effect of thresholding in root trait estimation and to optimize the accuracy of root trait estimation. The results generated by the algorithm applied to 400 legume root images were compared with those generated by two separate software (WinRHIZO and RhizoVision), and the algorithm was validated using ground truth data.

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Orbital volume assessment is crucial for surgical planning. Traditional methods lack efficiency and accuracy. Recent studies explore AI-driven techniques, but research on their clinical effectiveness is limited.

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Introduction: The diagnosis of myocardial infarction (MI) needs to be swift and accurate, but definitively diagnosing it based on the first test encountered in clinical practice, the electrocardiogram (ECG), is not an easy task. The purpose of the study was to develop a deep learning (DL) algorithm using multitask learning method to differentiate patients experiencing MI from those without coronary artery disease using image-based ECG data.

Methods: A DL model was developed based on 11,227 ECG images.

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Article Synopsis
  • Acute Coronary Syndrome (ACS), particularly STEMI, is a major global health issue, and this study introduces a deep learning AI method for precise diagnosis of STEMI using 12-lead ECG data.
  • The AI model was validated with a database of 888 MI patients, achieving high accuracy in detecting ST-segment elevation and differentiating between STEMI and NSTEMI with impressive AUROC and AUPRC scores.
  • The findings indicate that the integration of AI into clinical ECG diagnostics can significantly enhance the timely treatment and outcomes for STEMI patients, underscoring the potential of AI in healthcare.
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Camera image-based deep learning (DL) techniques have achieved promising results in dental caries screening. To apply the intraoral camera image-based DL technique for dental caries detection and assess its diagnostic performance, we employed the ensemble technique in the image classification task. 2,682 intraoral camera images were used as the dataset for image classification according to dental caries presence and caries-lesion localization using DL models such as ResNet-50, Inception-v3, Inception-ResNet-v2, and Faster R-convolutional neural network according to diagnostic study design.

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Introduction: Stool characteristics may change depending on the endoscopic activity of ulcerative colitis (UC). We developed a deep learning model using stool photographs of patients with UC (DLSUC) to predict endoscopic mucosal inflammation.

Methods: This was a prospective multicenter study conducted in 6 tertiary referral hospitals.

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Pancreatic cancer is one of the most lethal cancers worldwide, with a 5-year survival rate of less than 5%, the lowest of all cancer types. Pancreatic ductal adenocarcinoma (PDAC) is the most common and aggressive pancreatic cancer and has been classified as a health emergency in the past few decades. The histopathological diagnosis and prognosis evaluation of PDAC is time-consuming, laborious, and challenging in current clinical practice conditions.

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Concurrent chemoradiotherapy (CRT) is the standard treatment for locally advanced cervical cancer (LACC), but its responsiveness varies among patients. A reliable tool for predicting CRT responses is necessary for personalized cancer treatment. In this study, we constructed prediction models using handcrafted radiomics (HCR) and deep learning radiomics (DLR) based on pretreatment MRI data to predict CRT response in LACC.

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Background: Owing to the remarkable advancements of artificial intelligence (AI) applications, AI-based detection of dental caries is continuously improving. We evaluated the efficacy of the detection of dental caries with quantitative light-induced fluorescence (QLF) images using a convolutional neural network (CNN) model.

Methods: Overall, 2814 QLF intraoral images were obtained from 606 participants at a dental clinic using Qraypen C® (QC, AIOBIO, Seoul, Republic of Korea) from October 2020 to October 2022.

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Introduction: Fluoroscopy can improve the success rate of thoracic epidural catheter placement (TECP). Real-time ultrasound (US)-guided TECP was recently introduced and showed a high first-pass success rate. We tested whether real-time US-guided TECP results in a non-inferior first-pass success rate compared with that of fluoroscopy-guided TECP.

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Article Synopsis
  • The study investigates the incidence of complications during ultrasound-guided rectus sheath blocks (RSBs) for pain control in laparoscopic surgery, highlighting a lack of previous reports on this issue.
  • Data from 4,033 RSB procedures were analyzed, revealing a 2.4% complication rate, with extrarectus sheath injections being the most common issue.
  • The study emphasizes the importance of understanding technical considerations to reduce complications and improve patient outcomes during the procedure.
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Article Synopsis
  • The study aimed to investigate the preemptive visceral analgesic effect of thoracic paravertebral block (TPVB) in patients undergoing laparoscopic cholecystectomy (LC), focusing on its impact when combined with a pre-incisional rectus sheath block (RSB).
  • In a randomized trial with 70 elective LC patients, those receiving TPVB before the skin incision consumed significantly less postoperative analgesics (morphine) and reported lower pain levels than those receiving TPVB after the procedure.
  • The findings suggest that administering TPVB prior to incision can effectively reduce opioid consumption and enhance pain management in postoperative care.
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Article Synopsis
  • Intraoral photographic images are useful for diagnosing dental caries, and this study explores the effectiveness of a deep learning algorithm for detecting caries by analyzing these images.
  • A total of 2348 images were collected from participants and divided into training, validation, and test datasets, employing convolutional neural networks (CNN) like U-Net, ResNet-18, and Faster R-CNN for image segmentation and caries classification.
  • Results showed significant improvements in accuracy and sensitivity for caries detection after image segmentation, indicating that deep learning models could provide a time- and cost-effective diagnostic tool for caries using intraoral photographs.
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This study aimed to analyze nursing diagnoses determined by the nursing students for patients in rehabilitation unit. Data were collected from 190 case reports submitted by the nursing students who practiced in the rehabilitation unit, and analyzed on the basis of North American Nursing Diagnosis Association (NANDA) International, Inc. nursing diagnoses.

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Introduction: Real-time ultrasound-guided thoracic epidural catheter placement (US-TECP) has been recently introduced. Patient's position is associated with the success of spine interventions; however, the effects of position on the outcome of the procedure remain unknown. We aimed to assess the clinical usefulness of patient positioning during real-time US-TECP.

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Objectives: Although patient-controlled epidural analgesia (PCEA) is an effective form of regional analgesia for abdominal surgery, some patients experience significant rebound pain after the discontinuation of PCEA. However, risk factors for rebound pain associated with PCEA in major abdominal surgery remain unknown. This study evaluated the incidence of rebound pain related to PCEA and explored potential associated risk factors.

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Background: The COVID-19 pandemic has limited face-to-face treatment, triggering a change in the structure of existing healthcare services. Unlike other groups, workers in underserved areas have relatively poor access to healthcare.

Objective: This study aimed to investigate the effects of video-based telehealth services using a mobile personal health record (PHR) app for vulnerable workers with metabolic risk factors.

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Although recent evidence shows that the programmed intermittent epidural bolus can provide improved analgesia compared to continuous epidural infusion during labor, its usefulness in major upper abdominal surgery remains unclear. We evaluated the effect of programmed intermittent epidural bolus versus continuous epidural infusion on the consumption of postoperative rescue opioids, pain intensity, and consumption of local anesthetic by retrospective analysis of data of patients who underwent major upper abdominal surgery under ultrasound-assisted thoracic epidural analgesia between July 2018 and October 2020. The primary outcome was total opioid consumption up to 72 h after surgery.

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Background: Personal health record (PHR) technology can be used to support workplace health promotion, and prevent social and economic losses related to workers' health management. PHR services can not only ensure interoperability, security, privacy, and data quality, but also consider the user's perspective in their design.

Objective: Using Fast Healthcare Interoperability Resources (FHIR) and national health care data sets, this study aimed to design and develop an app for providing worker-centered, interconnected PHR services.

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A vision-based gait analysis method using monocular videos was proposed to estimate temporo-spatial gait parameters by leveraging deep learning algorithms. This study aimed to validate vision-based gait analysis using GAITRite as the reference system and analyze relationships between Frontal Assessment Battery (FAB) scores and gait variability measured by vision-based gait analysis in idiopathic normal pressure hydrocephalus (INPH) patients. Gait data from 46 patients were simultaneously collected from the vision-based system utilizing deep learning algorithms and the GAITRite system.

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